The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 1976
Filed:
Jun. 15, 1973
Applicant:
Inventor:
Phillip E Allen, Wickliffe, OH (US);
Assignee:
Structural Fibers, Inc., Chardon, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ;
U.S. Cl.
CPC ...
264314 ; 264258 ; 264269 ;
Abstract
Hollow, reinforced plastic articles are molded in a closed molding chamber by employing an internal expandable bag to define the inside surface of the article to be molded. A nonstretchable sleeve surrounds at least a portion of the bag so that, when the bag is inflated during the molding operation, the sleeve accurately establishes the wall thickness of the article to be molded.